White foaming slime(?) suddenly comes out of my throat every once in a while. sometimes twice a day, sometimes it doesnt happen for weeks. sometimes theres food in it, sometimes not. sometimes i feel something in my throat afterwards. cause?

Maybe gastric reflux: I suggest that you keep a food diary and see if this is related to any certain types of foods that you eat. Best to sit up after you eat for at least 4 hours and avoid liquids with eating. Try to avoid talking and eating at same time. This could be related to sinus congestion. Your family physician could be of assistance with your symptoms. t